| // Copyright (c) 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_AURA_MUS_INPUT_METHOD_MUS_H_ |
| #define UI_AURA_MUS_INPUT_METHOD_MUS_H_ |
| |
| #include "base/containers/circular_deque.h" |
| #include "base/macros.h" |
| #include "mojo/public/cpp/bindings/strong_binding.h" |
| #include "services/service_manager/public/cpp/connector.h" |
| #include "services/ws/public/mojom/ime/ime.mojom.h" |
| #include "ui/aura/aura_export.h" |
| #include "ui/base/ime/input_method_base.h" |
| |
| namespace ws { |
| namespace mojom { |
| enum class EventResult; |
| } |
| } |
| |
| namespace aura { |
| |
| class InputMethodMusDelegate; |
| class InputMethodMusTestApi; |
| class TextInputClientImpl; |
| |
| class AURA_EXPORT InputMethodMus : public ui::InputMethodBase { |
| public: |
| using EventResultCallback = base::OnceCallback<void(ws::mojom::EventResult)>; |
| |
| InputMethodMus(ui::internal::InputMethodDelegate* delegate, |
| InputMethodMusDelegate* input_method_mus_delegate); |
| ~InputMethodMus() override; |
| |
| void Init(service_manager::Connector* connector); |
| ui::EventDispatchDetails DispatchKeyEvent(ui::KeyEvent* event, |
| EventResultCallback ack_callback) |
| WARN_UNUSED_RESULT; |
| |
| // Overridden from ui::InputMethod: |
| void OnFocus() override; |
| void OnBlur() override; |
| ui::EventDispatchDetails DispatchKeyEvent(ui::KeyEvent* event) override; |
| void OnTextInputTypeChanged(const ui::TextInputClient* client) override; |
| void OnCaretBoundsChanged(const ui::TextInputClient* client) override; |
| void CancelComposition(const ui::TextInputClient* client) override; |
| void OnInputLocaleChanged() override; |
| bool IsCandidatePopupOpen() const override; |
| void ShowVirtualKeyboardIfEnabled() override; |
| |
| private: |
| friend class InputMethodMusTestApi; |
| friend TextInputClientImpl; |
| |
| // Called from DispatchKeyEvent() to call to the InputMethod. |
| ui::EventDispatchDetails SendKeyEventToInputMethod( |
| const ui::KeyEvent& event, |
| EventResultCallback ack_callback) WARN_UNUSED_RESULT; |
| |
| // Overridden from ui::InputMethodBase: |
| void OnDidChangeFocusedClient(ui::TextInputClient* focused_before, |
| ui::TextInputClient* focused) override; |
| |
| void UpdateTextInputType(); |
| |
| // Runs all pending callbacks with HANDLED. This is called during shutdown, |
| // or any time |input_method_ptr_| is reset to ensure we don't leave mus |
| // waiting for an ack. We ack HANDLED because the input method can be reset |
| // due to focus changes in response to shortcuts (e.g. Ctrl-T opening a tab) |
| // and we don't want the window manager to try to process the accelerators. |
| // https://crbug.com/874098 |
| void AckPendingCallbacks(); |
| |
| // Called when the server responds to our request to process an event. |
| void ProcessKeyEventCallback( |
| const ui::KeyEvent& event, |
| bool handled); |
| |
| // Delegate used to update window related ime state. This may be null in |
| // tests. |
| InputMethodMusDelegate* input_method_mus_delegate_; |
| |
| // May be null in tests. |
| ws::mojom::IMEDriverPtr ime_driver_; |
| ws::mojom::InputMethodPtr input_method_ptr_; |
| // Typically this is the same as |input_method_ptr_|, but it may be mocked |
| // in tests. |
| ws::mojom::InputMethod* input_method_ = nullptr; |
| std::unique_ptr<TextInputClientImpl> text_input_client_; |
| |
| // Callbacks supplied to DispatchKeyEvent() are added here while awaiting |
| // the response from the server. These are removed when the response is |
| // received (ProcessKeyEventCallback()). |
| base::circular_deque<EventResultCallback> pending_callbacks_; |
| |
| DISALLOW_COPY_AND_ASSIGN(InputMethodMus); |
| }; |
| |
| } // namespace aura |
| |
| #endif // UI_AURA_MUS_INPUT_METHOD_MUS_H_ |